The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Mar. 27, 1987
Kenneth McCoy, Redwood City, CA (US);
Neil Edwards, Redwood City, CA (US);
Robert Wasley, San Carlos, CA (US);
Denis Wales, Fremont, CA (US);
Raychem Corporation, Menlo Park, CA (US);
Abstract
An apparatus for detecting the occurrence of an event, e.g. the presence of a liquid leak. The apparatus includes an elongate flexible core consisting of elongate elements which are twisted together. The elongate elements comprise first and second sensing members, which each have an electrically conductive outer surface and are physically separated from one another, and at least two elongate insulating members. These elongate elements are covered by a flexible braid which exerts a compressive force on the core. In one aspect of the invention, the flexible braid undergoes a reversible change in appearance when exposed to electrolyte, indicating the location of a leak.